656212545216 has 84 divisors (see below), whose sum is σ = 1890762816384. Its totient is φ = 217592256000.

The previous prime is 656212545179. The next prime is 656212545217. The reversal of 656212545216 is 612545212656.

656212545216 is a `hidden beast` number, since 6 + 5 + 62 + 12 + 54 + 521 + 6 = 666.

It is a super-2 number, since 2×656212545216² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (656212545217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2872335 + ... + 3092366.

Almost surely, 2^656212545216 is an apocalyptic number.

It is an amenable number.

656212545216 is an abundant number, since it is smaller than the sum of its proper divisors (1234550271168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656212545216 is a wasteful number, since it uses less digits than its factorization.

656212545216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964910 (or 5964897 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 656212545216 in words is "six hundred fifty-six billion, two hundred twelve million, five hundred forty-five thousand, two hundred sixteen".